Exhaust Manifold

The Genuine Subaru Inter Cooler Assembly (part number 21820AA340) is a direct replacement component engineered for turbocharged Subaru vehicles. Its primary function is to ensure the engine receives cool, dense air, which is crucial for optimal performance and power output. Signs that your intercooler may need attention include a noticeable reduction in acceleration, a hissing sound during acceleration, or the illumination of the check engine light. This intercooler is compatible with a range of Subaru models equipped with a turbocharger. Specifically, it fits the 2006-2008 Subaru Forester (Sports, XT trims) and the 2006-2007 Subaru Impreza (WRX, WRX TR, and STI trims) with the 2.5L H4 Turbo engine. Installation involves removing intercooler mounting bolts and loosening hose clamps securing the ducts, with specific steps detailed for Forester and Impreza models regarding PCV hoses, turbocharger inlet duct, and air bypass valve connections. It's important to note that this part is listed as discontinued by the manufacturer. The item weighs 3.20 pounds and is guaranteed by Subaru's factory warranty, typically a 12-month/12,000-mile term, and carries manufacturer certification.